NCT00853398

MINIMALLY INVASIVE SURGERY in Total Knee Arthroplasty

A Prospective (Non)-Randomized Controlled Multicenter Clinical Study Of the Genesis ii Total Knee System in Minimally Invasive Total Knee Arthroplasty

• Status: Terminated
• Phase: Phase 4
• Study type: Interventional
• Enrollment: —
• Sponsor: Smith & Nephew Orthopaedics AG · Industry
• Sex: All
• Age: 18 Years – 80 Years
• Healthy volunteers: Not accepted

Summary

Overall study design: A prospective, randomized, multi-center clinical studies comparing the minimal invasive and the standard surgical total knee replacement technique (control) using the Genesis II total knee system. The study will collect efficacy, safety and socio-economical data over 2 years. An additional 5 years follow-up interval is optional. The objectives (short-term follow-up) of the study are to: 1. Assess whether the improvement in Pain and Range of motion per Knee Society scoring system and VAS score. 2. Assess whether there are any differences between the surgical techniques as regards complication rate. 3. Assess whether the hospital stay and the rehabilitation time (Straight leg raise, Active/passive ROM) of the patients differs between the two techniques. 4. Assess the x-ray mechanical alignment between the two techniques. Attempts will be made to assess whether the collected peri-operative data (including incision length, blood loss, wound appearance, hospital readmissions and operative time) differs between the two surgical techniques. The primary objectives (mid-term follow-up) of the study are to: 1. Improvement in Pain and Function per Knee Society Scoring system 2. Number and Extent of Radiographic Lucencies \>2mm 3. Revision and knee-related adverse events 4. Improvement in Quality-of-life via the VAS score 5 investigational sites will participate and enroll a total of approximately 250 patients over a 12 months period. Thus, each site will enroll 50 patients.

Conditions

• Osteoarthritis of the Knee

Interventions

Type	Name	Description
PROCEDURE	surgical technique

Timeline

• Start date: 2004-10-01
• Primary completion: 2007-10-01
• Completion: 2007-12-01
• First posted: 2009-03-02
• Last updated: 2014-05-23

Locations

1 site across 1 country: Germany